import { Component } from "react";
import Comment from "../comment/comment";

class Demo extends Component {
  constructor() {
    super();
    this.state={
      like:'看书',
      count:0
    }
  }
  render() { 
    return (
    <>
     <h2>案例（知识点）</h2>
     <Comment/>
    </>
    );
  }
}
 
export default Demo;